Home / 19,343.45-26,691.96-11,385.20

Finding the Fourth Proportional to 19,343.45, 26,691.96 and 11,385.20

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Solution

The fourth proportional to 19,343.45, 26,691.96 and 11,385.20 is: 15,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.45 : 26,691.96 = 11,385.20 : x
  2. Step 2: Convert to fraction form
    19,343.45/26,691.96 = 11,385.20/x
  3. Step 3: Cross multiply
    19,343.45x = 26,691.96 × 11,385.20
  4. Step 4: Simplify right side
    19,343.45x = 303,893,302.99
  5. Step 5: Solve for x
    x = 303,893,302.99/19,343.45
  6. Step 6: Final answer
    x = 15,710.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.